Ball-bearing cage.



A. RIEBE.

BALL BEARING CAGE.

APPLICATION FILED MAY23, 1914.

Patented Nov. 21, 1916.

: HE A] s ran BALL-BEARING CAGE.

Specification of Letters Patent. Patented N 21, 1916.

Application filed May 23, 1914. Serial No. 840,584.

To all whom it may concern:

Be it known that 1, AUGUST RIEBE, a citizen of the German Empire, and residing at \Veissensee, near Berlin, Germany, have invented. certain new and useful. Improvements in Ball-Bearing Cages, of which the following is a specification.

My invention relates to cages for ball bearings comprising one or more rows of balls.

Ball-bearing cages comprising two end plates and distance pieces connecting the same are well known. In such cages these distance pieces are separate parts having pins inserted into the end plates and upset on the other side thereof. In consequence of the balls rolling between the plates the latter tend to shift relatively to one another in a direction parallel to the planes in which they are located. Bending stresses are set up which attain a considerable value at the pins and, consequently, after a short time loosen the joints and cause the ballbcaring to be unsteady.

A primary object of my invention is to provide an improved ball-bearing cage to which these defects are not attached. To this end, I connect the two end plates by distance pieces which consist originally of flat lugs projecting from the one plate; these lugs are first bent at right angles to the face of the plate and then folded so that they havea triangular section, the distance pieces being formed as beams of even strength and provided at their free ends in known manner with lug-like projections which are placed through suitable holes in the second end plate. Owing to this arrangement the bending moments at the joints are avoided and only one bending moment occurs at that place at which the distance piece is integral with the end plate, but this can be obviated by suitably designing the distance pieces and forming the same as girders of even strength.

The invention consists in the construction, arrangement and combination of parts described hereinafter and pointed out in the claims.

Two illustrative embodiments of the invention are represented by way of example in the accompanying drawing, wherein 2-- Figure 1 is a front elevation, part of the same showing an end plate with distance pieces thereon for a ball-bearing comprlsing two rows of balls, and part showing the finished ball-bearing cage as seen looking on the second end plate; Figs. 2 and 3 are cross-sections taken on the lines IIII and III-IIL respectively, in Fig. 1; Fig. 4: shows the oneend plate in various stages of -manufacture of the distance pieces, and

Fig.5 is a part central cross-section corresponding to Fig. 2 showing a cage for a ball-bearing comprising one row of balls.

Referring to the drawing, the balls a shown in dotted lines are placed into holes in the end plates Z) and c and are guided in proximity totheir poles (Fig. 2). Distance pieces (Z which are integral with the plate Z) are arranged between the balls. These distance pieces are made out of lugs d which were originally located in the plane of the plate Z), were bent at right angles thereto and then had their longitudinal'edges e folded in such manner that the finished distance pieces (I have a triangular section.

At the free end of each lug (2 is a reduced lug-like portion 01' pin f which is placed through the second end plate and then bent over or upset for fastening the cage together, as will be understood from Figs. 1 and 3.

In order that the distance pieces (5 may ofier the greatest resistance at the place where they are connected to the plate I), at which they are subjected most severely to bending and shearing stresses, each is formed as a girder of equal strength throughout its length owing to its breadth gradually decreasing toward the free end.

I claim 1. A ball bearing cage comprising ring members, each ring member having a plurality of circular openings, the walls thereof being beveled to provide ball seats, one of the rings having integral tongues, the other ring having tongue slots, said tongues having a reduced end portion, said slots in one ring adapted to receive the reduced ends of the tongues of the opposed ring for securing the rings together, and means on the tongues, for preventing lateral movement of one ring with relation to the other.

2'. A ball bearing cage comprising spaced rings, each ring having a plurality of recesses to receive balls, integral tongues on one of the rings. the opposite ring having tongue slots, each of the tongues having a prion. f

reduced end portion and shoulders adrings in spaced relation, each of the rings having a plurality of circular openings, the Walls of said openings being inclined to 1-5 provide ball seats, and the inclined Walls of the openings having cut-out portions.

In testimony whereof, I afiix my signature in the presence of two Witnesses.

AUGUST RIEBE.

\Vitnesses HENRY HAsPER, WoLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. 0. 

